Air supply and automatic control for furnace doors



J. BALTHASAR ET AL.

-Filed June 1.9. l924 2 Sheets-Sheet 1 Fla. 1.

AIR SUPPLY AND AUTOMATIC CONTROL FOR FURNACE DOORS April 7, 1925 2 ww F xpl'il 7, 1925'.l 1,532,296

J. BALTHASAR ET AL AIR SUPPLY AND AUTOMATIC CONTROL FOR FURNACE DOORS 4 Filed June 19, 1924 2 Sheets-Sheet 2 35 FIG.5.

kwa. 20a @y m f 6 nvwow ill- Patented pr. 7, 1925.

UNITED *STATE-s; PAT-Erriv OFFICE.

JOHN BALTHASAR AND ANGELO VIOLA, JERSEY CITY, NEW JERSEY.

AIR SUPPLY AND AUTOMATIC CONTROL FOR FURNACE DOORS.

Application tiled .Tune V1,9,

T0 all whom it may concern: e Y

Be it known that we, JOHN BALTI-Iasan and ANGnLo VioLA, subjects of the King of Italy', residing at Jersey City, inthe county of Hudson and State of NewJersey, haveE invented certain new and useful Improvements in AirSupply and Automatic Controls for Furnace Doors, of which v the fol-,

will be rendered active whenV the door isV opened for automaticallycausing the discharge of air and which will operate'for cutting'otl' the supply of air when the door is closed.

Other objects and advantages vention will be 'apparent during thejcourse of the following description.v

In the accompanying drawings forming av part of this specification and in which like numerals are employed for designating like parts throughout the same, f

Figure l is a frontelevational view of a furnace showing the'iire box doors with the.

air supply means embodying this invention properly associated therewith,

Figure 2 is a vertical sectional View through one lire-box door and the door frame associated therewith and further illustrates theopenings through which the air is discharged into the fire-box, f f f Figure 3 is a front elevational view of'a door frame with the automatic air control embodying this invention properly. associated with the door carried by saidframe,

Figure 4 is a top plan view, Ypartly, in section ofthe structure illustrated in Fig. 3, Figure 5 is a detail plan view ofthe valves employed for controlling thedischarge of air, n H

Figure '6 is a fragmentary end elevational view of one of the valves illustrated in' Fig. 5 and shows a portion of the automatic valve operating mechanism, the said valve'being in its opened position, and

`of the ini v1924.. serial No. 720,971.

Figure 7 is a similar view to Fig. 6 and shows the valve-in its closed position.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of this invention, the numeral 5 designates the front of a furnace which is provided with lire-box doors 6 associated with the door frames 7.

In Fig. 2 there is shown a sectional View of the door frame 7 for the purpose of illustrating the provision of a tubular passageway 8 which is formed therein.v This passageway extends entirely around the frame 7 and is provided with a plurality of discharge orifices 9 which are formed in the frame and extend at substantially' a 450 angle from the inner :face 7:L of the frame 7. It is to be understood that the provision of these orifices 9 in all four sides of the frame 7 will form four converging walls of air, illustrated by the arrow lines, which will meet at a point spaced inwardly from the frame 7..

In Fig. l there is illustrated an air'y supply pipe l0' having' a T-joint- 1l connected to its lower end for the purpose of delivering the lsupply of air to the branch pipes l2.v The outer ends of these branch pipes l2 are provided withthree-way connectors 13 having the angle pipes 14 connected thereto which are provided for delivering air to opposite sidesV of the door frames 7, the said angular pipes 14C being threaded, as at lewin the vframe 7. The'` branch pipes l2, in the form illustrated in Fig. l, are provided with globe valves 15 by'means of which the supply of air may be controlled manually. y

In Figs. 2 to 7 inclusive thereris shown a modiiied form of control for the air supply which includes the rotatable, tapered plug valves 16, illustrated in detail in Fig. 5 having transversely extending ports 17. These valves 16 are provided with squared inner ends 1S which'are received within the sockets '19, formed on the 'opposite ends of the rodV 20, and are secured therein by pins 21 there being luniversal joints 2O'l formed in the rod 20, as shown. rIhese valves 16' are received within bosses 22 which are formed on the door frame 7 and which have pockets withinY which the lower ends of the angle pipes 14 are received. Arestricted passageway 22"L is formed in each boss 22 for providing a communication between the the position ilhist'rateil in Figh.

Will be seen b-v inspecting Fig. 2, 'that these valves 1S, 'wi Vi their ports 17, nia-y be ar .ranged for controlling,- the flow of air rom'v Vthe pipes 111 into the tubular passageway 8 formed in the door iframe '.7. It Will be understood that 'the valv'e's A16, 'diie to 'the 'restricted passageways 22,, will necessarily have to partially rotate toi'vard their 'opened pt )si'tionsbeiore any communication will be established between the pipes 14 and the 'a'gje'vay forniedin'the 'frame 7.

In Figs. and 1li, 'the door 'G i's illustrated ash'beii'i'g' svvi'ngingly connected :to 'the door Erme 7 by means of lthe pin'tles 23 which pass ,thr' bh ltl'ie 'lugs 2li "on the traifne and 'the lugs 25 vcarried by the door 6. The valve 1G adj acentthe doorhinf'f'e i'sprv'ided with 'a `s't m 2G 'having a squared, reduced end 'to 'which seci'ire'd 'an ari'n '28, best' i'llustrate'd in t, 6 and 7. The 'o'iite'r lend of this 'arm '28 i's pivotally connected 'to a link 29 ivliic'h has an enlarged, "rectangular head 3 0 at 'its 'outer end. This head vBO is cnt-'a.{vay,fas 'atl 'for 'the reception o'if'lthe spaced rollers iRigid'ly se'ciired 'to t'l'ie upper lng '25,'carried 'by l'the 'furnace door 6, is a vertically 'extending 'post 'which has secured to "its 'upper 'e'nd a spiral 'track 34 'which 'is 'piffide'd` ivith, truly, yhorizontally v'exten'ding portion '35 adjacent -the end ivhich is 'connected lto the 'post It will be seen, by inspecting Figs. 3 and, t-

that this ,spif'il track slopes 'downwardly from this hoi Zont'al portion 35 andterminates i'n'a'n iipturiied'eiid 3G. it `W`ill,ialso, be seen by "nspefcting Fig'. 4 l'that this track is 'of subst: n ti'ally "e'lo'ng` ted v'slifape in plan viev'v. En Figs 3, 4, G'and 7,"th'e rollers 32 are illustrated as vbeing positioned iipon 'op'- posite Asidesof'tlie track "3214 'and 'that Inovemeiit of 'the said trackv'betiveen the `rollers 82 will 'canse lthe llink 29 'tonbe moved 'for erinitting,tilie'head 30 to liolloiv the 'inclination oi 'lilie t'racl; 3&1. v

The operation 'oit this a'iitom'atic r4valve control 'is las Atollowstw l i Itis to be understooilfthat 'when'the lireb'xfdoor Gfis 'in its closed: positimn'the roll- @fs 'e2 carried by 'the head 3o will be jpositiO'lid vtipon ltlie spiral 'track '34 'adjacent .the tiptiirne'd'e'nd 36, .a's best illnstr'at'ed'in Fig. 7. '1`lieflocating'of'thi's li'e'ad 30 'at the oiiter end 'of xthe 'track '34, the llovve'r L'end 'of' 'said tr'acln'ivill cause'tlielink' 'QQ'tObe positioned Withitsloiver end invertical alinenient yvith the stem 'Q6 of the valvelb and'below'sucli stem. This movement oftlielower end of the li1il 29 ivill canse the arm ''tlo 'move for rotatiiig'tlie valye 16. lv/Vhe'ntlie door 6 `is .moved toivard 'it's opened "position, fthe spiral'tr'aclz Biivill be Aforced"l'irougli the op'e'iiin'g'ioi the head 30 and the arm '29 Willbe drawinthrongh an arci atepath, into Thisupward movement of the link 29 will canse the ,a'r'm 28 to n'iov'e for rotating 'the' valve 16 'to aline the p'o'rt 17 with the pi'p'e 14. By Vthe `time the door has been swung hall- Wayopen, Vor When the'door is extending at right angles to the :trame 7, the rollers 82, 'carried by 'the head 30, will "have reached the outer end of the horizontally extending portion 35 "of 'the track 34, whereupon further movement Aof the door 6 toward its fully opened yposition 'will cause the rollers t'o traveljalong sncl'ijliorilzontai portion 35. and the valves 16 will be retained in their :Opened position. It is to he understood Vthat when the 'door 6 is moved into its closedV position, the s"1 valves ivill "al'so be 'CloSe'd, the valves starting on "their ltra-vel 'to "their `Aclosed zpositions 'vhen Vthe lrollers 32A le 'v'e the Lhorizontally extending poftio'ri' or he t'rackl.

For the purpose of operating 'thevalves 16 'inantially, 'should 't 'e antdnnaticjoperating structure become iiope'rativ'e loiany reason, the valie l16farthest from "th'eulor hinge is provided vvithjasquared'stemf adapted to receive 'a haynd'le Wlierebyftle valves maybe operated Independently or 'the movement 'of the door. Y

, It iswnoiv believed that the constriiotion and Operation of this vdevicefvvill be understood 'from the 4above 'detail description and that no farther `VeX'planatio'n is deemed 'necesi v r 'It to 4l)'e'nnde'rstood'thatlthe 'forms ol 'this' invention liereivith s'hovvn Aand described 'are to'. be taken as preferred examples 'of the saine, 'and "that varion'sclia'ng'es 'in the shape, sie, 'and arrangement 'ofv 'parts may be 'resorted to ,Without departing Ifrom the spirit of 'the 'invention 'or the "scope 'of 'the slibjoin'ed 'claims l l 1 "Having thas describen the 'inv'entin7 ive claim: I

`1. rl`l1e combination ivith a Iurance 'iirebox door-frame having a Vpassageway formed therein provided ,with a plu'ifality oi air ldis` charge oriliees, of means tor supplying"airto saidpassage xvay,i al rotary yvalve for controlling` theamountof air snpplieil, a door 'swing inglyv carriedbysaid iranie, va vpost carried by said door, a 'traclg llavin-g an inclined portion and a horizontally extending i'porV` tion Lcarried.',b'y"vslaiol post, 'and means Y'conf nected V'to 'said valve'andfadapted 'to 'travel onsaid track for c'ansing the 'siving'iiigmovenient 'of f said 4doorl to rotate said v'alve, tli'e inclined fpoition "of 'the track "causing 'fthe rotation Moi' the @valve and 'the 'horizont-ally eziteridinigportion pcrii'iitting the doorftofbe moved vfrom its half A'opened "to "its `ully opened position without further rotating the valve.l Y v 2. The combination "'with 'al'iirebox door frame jifavjing "a passageway ffrmed Fthefein provided 'With Iafpliirality of' air discharge orices, of means for siipplying air'tolsaid ibi) ill).

CII

Jassao'ewa a rotar valve for controllino'A the amount of air supplied, a door swingingly carried by said frame, a perpendicular post carried by said door at a point spaced from its hinging axis, a track having an inclined portion and a horizontally extending portion carried by said post, a laterally projecting` arin fastened to the valve, a link pivotally connected to the arm, and spaced parallel rollers journaled in the free end of said link7 said rollers being adapted to engage the upper `and lower faces of said track for causing the swinging movement of said door to rotate said valve, the inclined portion of the track causing the rotation of the valve land the horizontal portion permitting the door to be moved from its halfopened t0 its fully opened posit-ion Without further rotating the valve.

In testimony whereof we aix our signatures. v

vJOHN BALTHASAR. ANGELO VIOLA. 

